{"kind":"host","input":"chess.com","report":{"host":"chess.com","checkedAt":"2026-10-31T19:44:00.957Z","a":{"status":"found","values":["104.18.141.67","104.18.140.67","104.18.139.67","104.18.137.67","104.18.138.67"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:8c43","2606:4700::6812:8b43","2606:4700::6812:8a43","2606:4700::6812:8943","2606:4700::6812:8d43"],"ttl":229,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.chess.com","a":{"status":"found","values":["104.18.140.67","104.18.141.67","104.18.137.67","104.18.139.67","104.18.138.67"],"ttl":42,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:8943","2606:4700::6812:8a43","2606:4700::6812:8b43","2606:4700::6812:8d43","2606:4700::6812:8c43"],"ttl":20,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"chess.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).","addresses":[{"address":"2606:4700::6812:8c43","result":"answers","port":443},{"address":"2606:4700::6812:8b43","result":"answers","port":443},{"address":"2606:4700::6812:8a43","result":"answers","port":443},{"address":"2606:4700::6812:8943","result":"answers","port":443},{"address":"2606:4700::6812:8d43","result":"not tested"}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.chess.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).","addresses":[{"address":"2606:4700::6812:8943","result":"answers","port":443},{"address":"2606:4700::6812:8a43","result":"answers","port":443},{"address":"2606:4700::6812:8b43","result":"answers","port":443},{"address":"2606:4700::6812:8d43","result":"answers","port":443},{"address":"2606:4700::6812:8c43","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dan.ns.cloudflare.com","ipv6":true},{"host":"sue.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://chess.com/","address":"2606:4700::6812:8c43","status":301,"tls":"valid"},{"url":"https://www.chess.com/","address":"2606:4700::6812:8943","status":200,"tls":"valid"}]},"receiptId":"LQsb23WMHh"}